种养结合模式下的畜禽粪污承载力分析研究——以长江流域太湖县为例  

Load Capacity Analysis of Livestock Manure Under the Mode of Agricultural Crops Consuming Livestock Manure——Take Taihu County at Yangtze River Basin

作　　者：何祥亮 邵培艳 乔媛媛 于晴 HE Xiangliang;SHAO Peiyan;QIAO Yuanyuan;YU Qing(Anhui Academy of Ecological and Environmental Sciences,Hefei,Anhui 230022;Hefei University of Technology,Hefei,Anhui 230009;Anhui Bairui Environmental Protection Technology Consulting Co.,LTD,Hefei,Anhui 230021)

机构地区：[1]安徽省生态环境科学研究院,安徽合肥230022 [2]合肥工业大学,安徽合肥230009 [3]安徽省柏瑞环保科技咨询有限公司,安徽合肥230021

出　　处：《家畜生态学报》2024年第7期72-79,共8页Journal of Domestic Animal Ecology

基　　金：安徽省环保专项资金项目《安徽省畜禽养殖污染防治专项规划》(2021BTAFN03462);安徽省环保专项资金项目《安徽省畜禽养殖业污染物排放标准》(2022BTQFN3794);安徽省科技厅重点专项《河塘沟渠氮磷生源物质滞留过程调控及潜力提升技术研究》(202004i07020005)。

摘　　要：在共抓长江大保护的战略背景下,为控制农业面源污染,基于畜禽养殖粪污进行农作物消纳的种养结合模式,采用养分平衡法,通过计算太湖县畜禽粪尿污染物产生量、耕地负荷、主要作物粪肥需求量等,测算了全县畜禽养殖粪污土地承载力。结果表明,全县畜禽粪污总氮和总磷产生量分别为5807.59 t和1922.94 t,污染物耕地负荷属于II级(潜在环境风险),个别乡镇污染物耕地负荷属于IV级(高环境污染风险)。以氮和磷养分计,全县畜禽粪污土地承载力分别为2.75×10^(6)头和1.56×10^(7)头猪当量,计算出来的土地承载力远大于现存栏量。但以氮为基准分析,徐桥镇和大石乡等部分乡镇承载力空间接近满负荷,应采取相应措施,加强管控。In the strategic context of comprehensive protection of the Yangtze River,a combined model of crop consuming livestock and poultry manure was adopted in order to control agricultural non-point source pollution.The nutrient balance method was used to calculate the pollutant production of livestock and poultry manure,land load,and the manure demand for major crops in Taihu County.The land carrying capacity of livestock and poultry manure in the entire county was estimated.The results showed that the total nitrogen and phosphorus production of livestock and poultry manure in the county are 5807.59 t and 1922.94 t,respectively.The pollutant load for farmland is Grade II(potential environmental risk),which of individual townships is Grade IV(high environmental pollution risk).Based on nitrogen and phosphorus nutrients,the carrying capacity of livestock and poultry manure contaminated land in the county is 2.75×10^(6) and 1.56×10^(7) pig equivalent,respectively.The calculated land carrying capacity is much greater than the existing amount of livestock on stock.However,based on nitrogen analysis,some townships such as Xuqiao Town and Dashixiang are approaching their carrying capacity,indicating the need for corresponding measures to strengthen the control.

关 键 词：畜禽养殖 种养结合 耕地负荷 土地承载力 太湖县 

分 类 号：S811.5[农业科学—畜牧学] X713[农业科学—畜牧兽医]